AB-02Match the fixing to your wall before you buy anythingA scaffold board shelf with pipe brackets is heavy once loaded, so it needs a fixing that reaches solid material, not just plasterboard. On dot-and-dab, use a long fixing that passes through the plasterboard, through the dab void, and at least 30mm into the masonry behind - a plain wall plug on its own is too short and will pull out. On timber studs, use a wood screw straight into the centre of the stud. On metal studs, use a self-drilling or toggle-type metal-stud fixing - never a plain plastic plug and never an ordinary wood screw, both strip straight through 0.5mm steel; a metal stud will not hold this weight on its own, so add a timber noggin between the studs or fix through to the masonry behind instead. On lath and plaster, treat it like dot-and-dab but expect the void to be deeper and the plaster more fragile - fix into whatever solid material sits behind the laths, or into a joist if you find one.